React cosmos by react-cosmos
Sandbox for developing and testing UI components in isolation
reactdevtoolsuicomponentstestingsandbox
Verdict 74/100 health $4.13/mo cheapest, hetzner 2/5 setup difficulty Last release 2 months ago
Health score
74 /100
6-dim composite
Self-hosts from
$4.13 /mo
hetzner · CAX11
Difficulty
2 /5
Docker + read README
GitHub stars
8.7k
393 forks
Health score breakdown
6-dimension composite. See methodology for formula and weights.
activity
50
maturity
100
community
96
security
85
sustainability
100
adoption
34
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 8.7k | github.com/react-cosmos/react-cosmos |
| GitHub forks | 393 | github.com/react-cosmos/react-cosmos |
| NPM downloads (last month) | 172k | react-cosmos |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 12.4 years | since Feb 2014 |
| Last commit | 2 months ago | May 3, 2026 |
| Releases shipped | 90 | last: 2 months ago |
| Security policy | SECURITY.md | declared by maintainers |
| Funding links | 1 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Ready to self-host React cosmos?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed Jun 21, 2026.
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